JPH0267627A - Load module output system - Google Patents

Abstract

PURPOSE:To process a user program only in one stage by previously executing the linkage edition processing of a module group at the time of executing an object program execution code and including the processed result in an address- referred load module frame. CONSTITUTION:A translation processing means 2a translates a source program 1 and outputs the object program execution code. Then, a processing system 2 starts processing for including the execution code outputted from the means 2a in the load module frame 2b. An execution code inclusion start address P is a known value determined at the time of forming the frame 2b. At the time of completing the including processing of all the execution codes, the processing system 2 outputs the load module frame 2b as a load module 3. Thus, the formation of the user program can be processed in one stage.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a load module output method.

[Conventional technology]

The conventional load module output method is to create a target program by translating the source program using a translation processing program, and then use a linked editing processing program to resolve the runtime module group required for execution and the address reference of the target program. and outputs an executable load module.

[Problem to be solved by the invention]

The load module output method described above has a drawback in that it requires two steps of processing: translation processing and linked editing processing.

[Means to solve the problem]

In the load module output method of the present invention, the execution code of the target program output by the translation processing program is processed in advance by link editing processing of the run-time module group necessary for execution, and address references have already been resolved in the load module frame. This is done by embedding it within.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention.
2 is a source program, 2a is a source program translation processing means, 2b is a load module frame, 2 is a source program translation processing means 2a and a load module frame 2
b is a user program creation processing system, and 3 is an output load module.

The load module frame 2b is created by performing link editing processing on a group of runtime routines before the target program is output by the translation processing program. In order to do this, a module with a jump table in which jump instructions are arranged and this execution code is embedded so that a jump between segments can be made only with the execution code of the target program embedded by the source program translation processing means 2a. A module with an empty area is connected together with a group of runtime routines using a normal linked editing processing program. As a result, a load module frame 2b in which address references have been resolved can be realized.

When the source program 1 is input to the user program creation processing system (hereinafter simply referred to as the processing system) 2 when the load module 3 is output, the processing system 2 transfers control to the source program translation processing means (hereinafter referred to as translation processing) 2a. do.

The translation process 2a translates the source program 1 and outputs the execution code of the target program. This execution code is a generally known intermediate code, for example, in a source program, the parameter CCI.

If the instruction CC3 has CC2, the parameter CCI
, CC2 on the stack, and then outputs code C3 without indicating the instruction CC3.

Next, the processing system 2 starts the process of directly embedding the execution code output by the translation process 2a into the load module frame 2b. Here, the embedding start address P of the execution code in the load module frame 2b is a known value that is determined when the load module frame 2b is created.

When the processing system 2 completes the embedding process for all executable codes, it outputs the load module frame 2b for which the embedding process has been completed as the load module 3. When the load module 3 is executed, execution codes are read one by one from the address P and executed. In the case of the above instruction CC3, the parameter C is set by the execution codes C1 and C2.
Put CI and CC2 on the stack, then execute code C3
The command jumps to instruction CC3 via the jump table and its processing is performed.

〔Effect of the invention〕

As explained above, the present invention has the effect of making it possible to create a user program in one step by combining a load module frame and an execution code.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Source program, 2a... Source program translation processing means, 3b... Load module frame, 2
...User program creation processing system, 3...Rotomo 2b: Load and digitize one module 7 Figure

Claims (1)

[Claims] A load module output method characterized by embedding translated execution code of a target program in a load module frame in which address references have already been resolved by performing link editing processing for a group of runtime modules in advance.